On Fri, Jun 25, 2010 at 04:51:21PM -0700, Don Armstrong wrote: > The very first message may be private (or partially so), but the main > part of the discussion usually isn't, and certainly the OT leaves of > the discussion aren't. [In past four big threads we were 2/4 of > starting messages being appropriate for -private...] How about rejecting all mails with Re: or [OT] in the Subject?